plot.radviz: A Plotting Function for the Radviz Object

In yannabraham/Radviz: Project Multidimensional Data in 2D Space

A Plotting Function for the Radviz Object

Description

Plots the Dimensional Anchors and projected data points in a 2D space.

Usage

## S3 method for class 'radviz'
plot(
  x,
  main = NULL,
  anchors.only = TRUE,
  anchors.filter = NULL,
  label.color = NULL,
  label.size = NULL,
  point.color,
  point.shape,
  point.size,
  add,
  ...
)

Arguments

x	a radviz object as produced by do.radviz
main	[Optional] a title to the graph, displayed on top
anchors.only	by default only plot the anchors so that other methods can easily be chained
anchors.filter	filter out anchors with low contributions to the projection (superseded)
label.color	the color of springs for visualization
label.size	the size of the anchors (see customizing ggplot2 for details on default value)
point.color	deprecated, use geom_point instead
point.shape	deprecated, use geom_point instead
point.size	deprecated, use geom_point instead
add	deprecated, use geom_point instead
...	further arguments to be passed to or from other methods (not implemented)

Details

by default the plot function only shows the anchors. Extra geoms are required to display the data. When anchors.filter is a number and type is not Radviz, any springs whose length is lower than this number will be filtered out of the visualization. This has no effect on the projection itself. Please note that this parameter is being superseded by the anchor.filter function.

Value

the internal ggplot2 object, allowing for extra geoms to be added

Author(s)

Yann Abraham

Examples

data(iris)
das <- c('Sepal.Length','Sepal.Width','Petal.Length','Petal.Width')
S <- make.S(das)
rv <- do.radviz(iris,S)
plot(rv)
plot(rv,anchors.only=FALSE)

library(ggplot2)
## should look the same as before
plot(rv)+geom_point()
plot(rv)+geom_point(aes(color=Species))

yannabraham/Radviz documentation built on April 3, 2022, 1:30 p.m.